I would like there to be a /block command, such as to stop people from spamming tpas, its only for you though so you can ignore that player and a /unblock command to unblock them, so you dont have to see their msgs and tpas. I feel this could be more useful to stop tpas, since mutes dont stop people from tpaing.
Same, people sometimes just spam tpa me then offer me things like growlithe fro a dragonair. It gets super annoying
If they are using a basic bukkit tpa type plugin, there is usually a tpa toggle built in. If not, it's usually not hard to add one. ./toggle tpa